Subject: 3.5m Night Log 20160730
From: mcmillan@apo.nmsu.edu
Date: Sun, 31 Jul 2016 11:58:03 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Saturday, July 30, 2016
                                                           ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
--------------------------------------------------------------------
B.Ketzeback       R.McMillan            DIS            21:45   00:00
M.Hammergren      K.Nault,M.Brucker     ARCTIC         00:10   02:04
T.Wilkinson       L.Hebb,T.Wilkinson,   DIS            02:16   05:25
                  J.Davenport
   INST       SCHEDULED     WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B    D    B
 ----------------------------------------------------------------
EN01/W     20:11   00:10   1.6   0    0    0   2.4  0.0   0    0
AD02/R     00:10   02:10    0    0    0    0   2.0  0.0   0    0
UW12/R     02:10   06:08    0    0    0    0   1.9  2.1   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: R.McMillan
Clouds ranging from overcast to barely there.  Seeing was good.
I did some engineering during first half.  While closed, I checked out ARCTIC and found that the strong ramp we were seeing in bias images is gone, perhaps because we are running the instrument a few degrees warmer.  When the clouds eased up and I was able to open, I tested DIS on sky.  The contamination on the red side is very bad but it looks about the same as Thursday, so hopefully it has stopped getting worse.  I was also able to confirm good agreement between the spectrographs and the slitviewer on what the telescope focus should be.
After that it was time for science.  Adler had mostly clear skies and the final program struggled with a variety of clouds but never had to stop taking data.
                    ------- FAILURE LOG -------
PROG   INST   FAILURE MODE     TIME
    (SEDFNVOG)   TI/SHU    START  FINISH  DESCRIPTION
----------------------------------------------------------------------
            ---------------- FOCUS LOG ---------------
Time  Instrument  Focus     Az  El  Temp Strc Prim  Sec  Air  filt  FWHM
--------------------------------------------------------------------------
 22:06 dcamera    591( 1018) 104  36  16.7 17.8 18.1 17.9 17.3   -  1.22
 00:19 arctic   685( 1157)  44  49  15.7 16.0 16.6 16.0 15.9   r  0.65
 02:33 dcamera    687(  945)  28  48  14.5 14.7 15.3 14.6 14.6   -  1.23
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    64    46     10   194  (SSW)          cloudy   lt rain
     17:00    64    48      8   209  (SSW)          cloudy     rain
     18:00    70    47      7   185    (S)          cloudy     none
     19:00    65    46      7   154  (SSE)        mstly cldy   none
     20:00    64    46      8   175    (S)        mstly cldy   none
     21:00    63    46      7   165  (SSE)         ptly cldy   none
     22:00    62    46     12   144   (SE)        mstly clr    none
     23:00    62    45     17   152  (SSE)        mstly clr    none
     00:00    60    45     13   128   (SE)        mstly clr    none
     01:00    60    47     16   151  (SSE)        mstly clr    none
     02:00    59    50     12   183    (S)        mstly clr    none
     03:00    58    50     11   186    (S)         ptly cldy   none
     04:00    57    50      9   199  (SSW)         ptly cldy   none
     05:00    57    50     11   223   (SW)         ptly cldy   none
     Note: the wind was coming from the azimuth listed.
     The convention used is north=0 degrees, east=90 degrees.
     The dust count is particles > 1u per 0.1 cubic feet.
                          TELESCOPE STATUS
    Telescope drives operational. Current TCC version: 1.2.2
    Current TUI version: 2.5.1